Electric conductor



Sept. 30, 1930. A. HART 1,776,903

ELECTRIC CONDUCTOR Filed June 7. 192a Ay (yr-pf Patented Sept. 30, 1930 UNITED STATES ALBERT KART, OI PONDEBS END, EIGLLN'D ELEGI'BIC CONDUCTOR v Application filed June 7, 1928, Serial No. 288,710, and in Great Britain June 9, 1927.

This invention relates to electric conductors of the kind in which a plurality of parallel wires, with or without separate insulated coverings, are connected together by a com- 5 mon sheathing.

According to this invention, in the manic facture of electric conductors of the kind above referred to, there is employed substantially a standard braiding machine but so modified by adapting two or more of the gear spindles thereof to take the feed of the desired number of wires to be braided and connected together so as to afiord an interconnecting braided web or webs between the wires.

In order that the present invention may be clearly understood and more readily carried into effect, it is hereinafter described with reference to the accompanying drawings, in which r Figure 1 is an enlarged side elevation of a portion of a pair of electric conductors braided and connected in accordance with the invention.

Figure 2 is a similar view illustrating three 2 conductors braided andconnected in accordance withthe invention,'and

Figure 3 is a diagrammatic sectional plan view intended to represent the adaptation tothe present invention of a standard eiillilti gear spindle braiding machineof the d in which two sets of bobbin carriers are caused to travel along intersecting raceways in a V clockwise and anti-clockwise direction so as to ensure the two sets of threads cross"; and

interlacing with one another. Referring to the drawings (1 denotes the wires, of which there may be two (Fig. 1) three- (Fig. 2), or more, the said wires being woven or connected together in spaced rela- 40 tionship to each other by an outer braid orb which is arranged so as to form or covering for the wires and an coverin a sheat interconnecting web 0 or webs c, a between the wires. The a may bestranded as shown or solid according tothe use for which the are intended and the may also as shown eac be covered with ru ber or other insulatingJ material d before they are connected toge er by, the braiding or outer covering b, c. For the braiding operation -a standard braiding machine such as that indicated diagrammatically in Fig. 3 mav be employed provided it is suitablymodi fi'ed as for instance by adapting it to takethe feed of the two, three or more wires to be connected and to arrange them in relation to the machine so as to provide the plaited or woven portion 0 between the wires (1 and the encircling portions of spiral coils 1) around the said wires.

The principal modification illustrated in Fig.

3 consists in providing two or more of the gear spindles e of the machine with hollow bores f through which the wires (1, a pass to the take off roll, instead of ,being as in the ordinary way arranged centrally of the inachine. Thus in operation where a conductor passes through a gear spindle the whole of the bobbins travelling in one direction form the outer coveringon that conductor and also on every conductor passing through alternate spindles and form a webbing between each conductor by the crossing of the bobbins travelling in the opposite directionas in common braiding. The positions selected for the hollow bores may be varied, as will be apparent to thoseskilled in the art of braiding to give different patterns or colouring of the braiding so as to suitably distinguish the several conductors.

The strandsvof the braid may be of any desired colour or of one or more colours so as to give the finished article a pleasing appearance or so as to enable the'separate wires to be readily distinguishable from each other.

Wire so manufactured may be conveniently used for all purposes where twisted flexible wire has heretofore been employed as well as for domestic use where wires have to be secured to or around the walls of a house, [hung in the latter case being etl'ected by small nails or the like passed through the intermediate plaited portion of the covering.

The covering itself may be of cotton, silk 'or any other material.

What I claim is 1. An electric conductor including conducting wires, a braided sheath for each wire, and airintegral braided web between and uniting the braided sheaths, said web serving to space V the braided sheaths apart.

2. An electric conductor including conducting wires, .an independent braided covering for each of the wires, and a connecting braided web section between and uniting the braided coverings, said web section being of sufiicient width to serve for the reception of a fastening means to hold the conducting wires in place.

In testimony whereof I have hereunto signed my name.

ALBERT HART. 

